Backend code is the part of a website or application that isn’t visible to the user. The code is a behind-the-scenes part of development, requiring a high level of competency regarding coding and the server that is being used. A backend developer works on the implementation and configuration of systems, and thus provides the building blogs for a website or program.

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    Hello, we have a big project containing more than 1 thousand pages to develop, and my team can't finish everything on time this is why we have decided to have an extra hand working with us to handle some specific tasks. Required Experience you must have a great experience with Laravel and Livewire, Again must be an expert in both, no room to try your luck with us Development Rules: we are doing everything using coding standards, I am aware that there are many ways to develop anything, but mostly all of them are wrong, and only following development standards as stated by Laravel and Livewire is the only best practice, any way you will find our rules in the links below, you must follow these rules, even if the end result was working perfectly and no bugs but you decide to ignore our ...

    $359 (Avg Bid)
    $359 Ср. заявка
    34 заявок(-ки)
    Media Player with End User Playlist Functionality like Youtube 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Use open source media player (e.g. ) and add a playlist feature for the end user similar to Playlist feature on Youtube where anyone can create multiple playlists from content available. In this case, content would be come from a single hosted video library. I, as the admin, would also need to created playlists for the end user as an easy way to get them started. Videos must autoplay to the next video automatically and the video box must remain full size from one video to the next. In many cases, once a video is completed it returns to the home page where the video appears at the original size. I do not want this to happen.

    $20 - $168
    Скрытый Соглашение о неразглашении
    $20 - $168
    6 заявок(-ки)

    -Saya membutuhkan jasa penambahan fitur Download dan Print detail transaksi -Perbaikan operan ke

    $22 (Avg Bid)
    $22 Ср. заявка
    4 заявок(-ки)
    Develop a Website 5 дней(-я) left
    ПОДТВЕРЖДЕН

    for the website development project: its a website that helps users buy and sell industrial machines. What I am looking for now is to discuss with some full stack developers, the best software technologies to implement the new web design. I would like to see developers that work with different front end and back end technologies, so that I can gauge what is the most effective and economical solution for the project. Timeframes - 2-3 months

    $3263 (Avg Bid)
    $3263 Ср. заявка
    102 заявок(-ки)
    Mobile App Development -- 2 5 дней(-я) left

    I need experienced hybrid mobile app developers

    $19 / hr (Avg Bid)
    $19 / hr Ср. заявка
    86 заявок(-ки)

    A gift I would like to give to a two friends who are married and play under the name of the goddess Nyx. They also stream and their symbol for those who subscribe is the great horned owl, as owls are associated with Nyx and the night. A piece I'm looking for is one where Nyx and her husband Erebus are siting in the center of the piece, and in the background are large branches with many brown, silver/grey, owls siting on the branches under the night sky with stars. There are many other smaller details that I would like to add.

    $21 / hr (Avg Bid)
    $21 / hr Ср. заявка
    5 заявок(-ки)
    Add Trailing Stop Loss Execution in my Java code 5 дней(-я) left
    ПОДТВЕРЖДЕН

    I want you to integrate Trailing Stop Loss execution into my existing code. Public code for Trailing Stop Loss is

    $17 (Avg Bid)
    $17 Ср. заявка
    9 заявок(-ки)
    I need to fix a widget button - only php developer -- 2 4 дней(-я) left
    ПОДТВЕРЖДЕН

    I need to fix the reply of my widget button. This task should be start now i cant wait to monday. if you are interested send me a message.

    $20 (Avg Bid)
    $20 Ср. заявка
    47 заявок(-ки)
    Platforma crowdfundingowa - Stała praca okres ok 12 m-cy 4 дней(-я) left
    ПОДТВЕРЖДЕН

    Szukamy osób do zespołu programistów na stałe zlecenie ok 12 miesięcy, na czas budowy platformy crowdfundingowej. Osoby które zgrają się z zespołem i będą lojalne wobec firmy otrzymają propozycję stałej pracy na obopólnie ustalonych dogodnych warunkach. Osoby posiadające doświadczenie z zakresu: - AI - Blockchain - Front End Dev - Back End Dev - UI/UX/Projektowanie graficzne - Budowa kompleksowa platform społecznościowych - Zarządzanie zespołem developerskim - iOS/ Android Apps Budujemy obecnie zespół, prowadzimy rozmowy indywidualne. Szukamy osób które zaangażują się w projekt platformy od a-z i będą jej częścią. Po zrealizowaniu platformy dla osób chcących zostać w zespole na stałe przewidujemy częściowe udziały. Wynagrodzenia za...

    $21 / hr (Avg Bid)
    $21 / hr Ср. заявка
    9 заявок(-ки)

    Hi, Need to Build the backend for an existing Doctor Appointment App template : - Admin dashboard - Doctor login - Book appointments, doctor statistics, Right - Allow users to add new doctors or/and modify any wrong information of the existing doctors. - The informations submitted by the users need to be approved by the admin ( me ) prior to be published. - multi-language app Regards.

    $242 (Avg Bid)
    $242 Ср. заявка
    48 заявок(-ки)
    I need to fix a widget button - only php developer 4 дней(-я) left
    ПОДТВЕРЖДЕН

    I need to fix the reply of my widget button. This task should be start now i cant wait to monday. if you are interested send me a message.

    $35 (Avg Bid)
    $35 Ср. заявка
    33 заявок(-ки)
    Fastag Customer Project 4 дней(-я) left
    ПОДТВЕРЖДЕН

    I want a company who can build me a fastag project with there excellent developers. I want the app in native language of android and iOS. Contact me for for Info.

    $4948 (Avg Bid)
    $4948 Ср. заявка
    14 заявок(-ки)
    Vue + Laravel specialist needed for fix couple issues 3 дней(-я) left
    ПОДТВЕРЖДЕН

    My project is nearly done but I have issue with cookies in vue and couple small tasks, I need someone with ecommerce experience on vue and laravel. This is fully custom project and I need only back-end development. Only experts please with examples with above technologies. Preferred single freelancer and potential long-term project work

    $23 / hr (Avg Bid)
    $23 / hr Ср. заявка
    107 заявок(-ки)
    Full Stack Development 2 дней(-я) left

    We are a small central Europe chipboard business looking for a professional Full Stack web developer to code a custom website from scratch. Our two primary needs are: 1. Improve the UX and IU. 2. Create a minimalistic, clean design. Requirements: • English - C1 or Native (not required if proficient in Slovak or Czech language) • Expert in HTML, CSS, JavaScript, and PHP. • Well experienced with UI, UX and Graphic design • Creative and Analytical thinking You will be closely cooperating with one of our employees. If you consider yourself a creative thinker and are not afraid to take challenges, don't hesitate to contact us!

    $3369 (Avg Bid)
    $3369 Ср. заявка
    107 заявок(-ки)

    Need a professional Laravel PHP, fullstack, frontend, backend developer to "Fully Customize" a Script Pay $70

    $55 (Avg Bid)
    $55 Ср. заявка
    83 заявок(-ки)
    Backend Development services needed 2 дней(-я) left
    ПОДТВЕРЖДЕН

    I need someone who can work on our web app development. Long term work. Startup company.

    $122 (Avg Bid)
    $122 Ср. заявка
    42 заявок(-ки)

    We're looking for a full stack developer who has excellent communication skills. The role is to work with our clients and developers to gather requirements and collaborate in development. Minimum Requirements - 3+ years experience in development - At least one of the following: Node, .NET Core, Java/Spring, Django, Ruby on Rails - HTML5, responsive CSS frameworks like Bootstrap or Tailwind, frontend Javascript frameworks or libraries like ReactJS - Native/Fluent English Bonus - Previous experience working as a project manager, or a technical consultant. Benefit Perks - Hourly rate: 50 - 70 USD / hour - Part-time, Flexible timing Duration: 1+ year

    $48 / hr (Avg Bid)
    $48 / hr Ср. заявка
    91 заявок(-ки)
    Python SDK for BitMart 1 день left

    I'm searching for a python dev with strong experience in trading. Understanding most aspects of trading. ` We want to create a python API with our name for Bitmart. Mostly about 80% of their main functionality (Spot and Futures). More nuances I will after your proposal.

    $554 (Avg Bid)
    $554 Ср. заявка
    23 заявок(-ки)
    fix and compile golang app (to start now) -- 2 1 день left
    ПОДТВЕРЖДЕН

    I need help to compile again becausewe forgot to add 2 features. Please write me if you can start right now.

    $153 (Avg Bid)
    $153 Ср. заявка
    22 заявок(-ки)
    Payment gateway integration for React native mobile app and website 21 часов(-а) left
    ПОДТВЕРЖДЕН

    By selecting the "Read More" button it should prompt for a payment of INR 7 to access the complete article All payment modes should be available for the user such as UPI, NetBanking, Debit card, Credit card Payment interface should be compatible with android, ios. Payment interface should work in websites also Users anywhere in any country should be able to make the payment and access the article. For other countries other than India, which has high currency value than Rupee they should pay 1$ and access the article For other countries other than India , which has lower currency value than Rupee they should pay equivalent to INR 7 and access the article.

    $105 (Avg Bid)
    $105 Ср. заявка
    8 заявок(-ки)
    fix and compile golang app (to start now) 16 часов(-а) left
    ПОДТВЕРЖДЕН

    I need help to compile again becausewe forgot to add 2 features. Please write me if you can start right now.

    $148 (Avg Bid)
    $148 Ср. заявка
    22 заявок(-ки)
    Fifth time round 3 часов(-а) left
    ПОДТВЕРЖДЕН

    $30.00 – 250.00 CAD Looking for expert on Payment Gateways Please do not give me a fake or lead estimate. I value honesty and not games. If you just copy paste my request it shows me you did not read it. Potential for more work after this. This is not a Wordpress site. It is a full script. Similar to Kick Starter. It was redeveloped in 2018. First made in 2010. You will need PHP/CAKE2, HTML, CSS, Redhat, Backend and Front end Developer Experience. 1. Change the projects framework so that projects no longer end or need to end for a payment to happen. a. Projects should be able to end if they are deleted or cancelled 2. Payouts to happen every 7 or 14 or 30 days. Continuous. a. The 7 days, 14 days, or 30 days are to be selectable by user 3. Admin can override the 7, 14 or 30...

    $150 (Avg Bid)
    $150 Ср. заявка
    36 заявок(-ки)

    I want a e commerce website for my business which include payment integration

    $363 (Avg Bid)
    $363 Ср. заявка
    38 заявок(-ки)
    Explicit Filtering Phase -- 2 Завершено left
    ПОДТВЕРЖДЕН

    Explicit Filtering Phase project as discussed in chat for phrase detection and resultant redirect.

    $470 (Avg Bid)
    $470 Ср. заявка
    29 заявок(-ки)
    Web stresser / booter source Завершено left

    Hello! I need someone to build this site for me, ideally if you already have experience in this industry. As a reference I can offer already finished leaked source codes. (needs to be integrated with Bitcoin payment gateway, and I don't want to redirect users, I want it to be displayed everything on my site) (I will provide Bootstrap frontend)

    $223 (Avg Bid)
    $223 Ср. заявка
    11 заявок(-ки)
    Trophy icon Create a Kucoin Futures trading bot 6 часов(-а) left

    Hello, We are looking for someone to create a KUCOIN FUTURES trading bot The bot should be able to execute orders in real time, for us to be able to select the token, and have all the many options as attached on the images. You can visit and open a free account at So you can see what we actually need. So for example: ETH USDT if the price decreases by 3% within 15 MINUTES BUY $1,000 as a LIMIT ORDER If the price INCREASES 2% SELL or if the price DECREASES 2% SELL ETH USDT if the price decreases by 10% within 1 HOUR BUY $1,000 as a LIMIT ORDER If the price INCREASES 4% SELL or if the price DECREASES 4% SELL Different options See attached images of examples

    $1100 (Avg Bid)
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